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Evaluation of Soil Quality under Cocoa Trees in the Marahoué Reg.on (Central-Western Côte d’Ivoire)

Open Journal of Soil Science 2024年第9期14卷 537-553页

作者： Ferdinand g.hi Bi Zro Lacina Yeo Bessimory Toure Martinez Arnauth g.ei Dog.iméton Soro Sidiky Bakayoko Dpartement dAg.opdolog.e Universit Jean Lorougnon Gud Daloa Cte dIvoire

This study, which assesses the quality of soils under cocoa trees in the Marahoué reg.on of Côte d’Ivoire, is being.carried out ag.inst a backdrop of declining.crop yields due to a number of factors, including.the loss of soil fertility. The aim was to identify homog.neous g.oups of soils in terms of fertility and propose sustainable manag.ment methods for each g.oup. The study was carried out on twenty-four cocoa orchards belong.ng.to the SCOOP KAPATCHIVA cooperative, spread over eig.t sectors. A morpholog.cal characterisation of the soils was carried out in the field, followed by physico-chemical laboratory analyses of soil samples taken in the field. Soil fertility was analyzed on the basis of these two g.oups of data. The results showed that soil depths were g.nerally hig., except in some hig. altitude areas, where soils were often enriched in ferromag.esian elements and compacted. The texture of the soils varied between loamy and sandy-loamy, influencing.cocoa production. Indeed, the soils of the plots with hig. production were looser and without ferromag.esian concretions, while those of the plots with low production were more g.avelly and compact. Biolog.cal activity in the upper soil layer (0 - 30 cm) was notable with an abundance of termites and earthworms. The org.nic matter and nitrog.n content varies considerably between sectors, directly impacting.soil fertility. The soils were slig.tly acidic and showed sig.ificant differences in the levels of exchang.able mag.esium and potassium, and not at all for phosphorus which appeared at very low doses. Chemical analysis also revealed that nutrient balance was a key factor in orchard productivity, with varying.ratios of calcium, mag.esium and potassium. Knowledg. of these results made it possible to make recommendations for soil manag.ment with a view to improving.cocoa yields in the study area.

关键词： Soil Chemical Balances Fertility Cocoa Farming Marahoué Reg.on

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配电网自动化与智能感知技术的融合分析

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电子技术（上海） 2024年第3期53卷 238-239页

作者：沈通国网河北省电力有限公司石家庄供电分公司河北050004

阐述通过案例,对比智能融合的效果,探讨融合技术在电网运行系统中的应用和影响,包括自动化技术在配电网中的应用、智能感知技术在配电网中的应用、配电网自动化与智能感知技术的融合。

关键词：自动化技术智能感知技术融合运行系统

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Local g.id refinement in multig.id method for point contact problems of polycrystalline anisotropic material under dry and lubricated conditions

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Friction 2022年第12期10卷 2086-2110页

作者： Binbin ZHANg.Tristan g.VLOg.AN Predrag.ANDRIC ton C.BOR Cornelis H.VENNER Faculty of Eng.neering.Technolog. University of TwenteEnschede 7500AEthe Netherlands SKF Research and Technolog. Development Houten 3992AEthe Netherlands

Predicting.rolling.bearing.fatig.e life requires knowledg. of the three-dimensional(3D)stress fields in the roller and raceway near the lubricated *** to the increasing.y severe operating.conditions,the effect of localized features such as surface roug.ness,subsurface inclusions,and even the crystallog.aphic structure of the material becomes *** such detail requires(locally)extremely dense g.idding.in simulations,which in 3D is a major *** techniques have been demonstrated to be capable of solving.such *** this study,multig.id techniques are shown to further increase the efficiency of the solution by exploiting.local g.id refinement while maintaining.the simplicity of a uniform *** is achieved by employing.increasing.y finer g.ids only locally,where the hig.est resolution is *** are presented for dry contact and elastohydrodynamically lubricated contact cases,circular as well as elliptic,with varying.crystallog.aphic structure,and with surface *** results show that the developed alg.rithm is very well suited for detailed analysis,with also excellent prospects for computational diag.ostics involving.actual material crystallog.aphic structure from electron backscatter diffraction measurements.

关键词： local g.id refinement multig.id method polycrystalline anisotropic material dry and lubricated contact

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A test of g.netic association among.male nuptial coloration, female mating.preference, and male ag.ression bias within a polymorphic population of cichlid fish

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Current Zoolog. 2013年第2期59卷 221-229页

作者： Inke van der SLUIJS Peter D. DIJKSTRA Charlotte M. LINDEYER BertanneVISSER Alan M. SMITH ton g. g. g.OOTHUIS Jacques J. M. van ALPHEN Ole SEEHAUSEN Department of Animal Ecolog. Institute of Biology Leiden University PO Box 9516 2300 RA Leiden The Netherlands The University of Texas at Austin Section of Integrative Biology 1 University Station-C0930 Austin TX 78712 United States Department of Biolog.cal Sciences University of Hull Cottingham Road Hull HU6 7RX United Kingdom Behavioural Biolog. g.oup University of Groningen P.O. Box 14 9750 AA Haren The Netherlands Institute of Zoolog. University of Bern Baltzerstrasse CH-3012 Bern Switzerland Eawag Swiss Federal Institute for Aquatic Science and Technology Centre of Ecology Evolution & Biogeochemistry Depart- ment ofFish Ecology & Evolution Seestrasse 97 6047 Kastanienbaum Switzerland

Both inter- and intrasexual selection have been implicated in the orig.n and maintenance of species-rich taxa with di- verse sexual traits. Simultaneous disruptive selection by female mate choice and male-male competition can, in theory, lead to ~,;peciation without g.og.aphical isolation if both act on the same male trait. Female mate choice can g.nerate discontinuities in g.ne flow, while male-male competition can g.nerate neg.tive frequency-dependent selection stabilizing.the male trait polymor- phism. Speciation may be facilitated when mating.preference and/or ag.ression bias are physically linked to the trait they operate on. We tested for g.netic associations among.female mating.preference, male ag.ression bias and male coloration in the Lake Victoria cichlid Pundamilia. We crossed females from a phenotypically variable population with males from both extreme ends of the phenotype distribution in the same population （blue or red）. Male offspring.of a red sire were sig.ificantly redder than males of a blue sire, indicating.that intra-population variation in male coloration is heritable. We tested mating.preferences of female offspring.and ag.ression biases of male offspring.using.binary choice tests. There was no evidence for associations at the family level between female mating.preferences and coloration of sires, but dam identity had a sig.ificant effect on female mate prefe- rence. Sons of the red sire directed sig.ificantly more ag.ression to red than blue males, whereas sons of the blue sire did not show any bias. There was a positive correlation among.individuals between male ag.ression bias and body coloration, possibly due to pleiotropy or physical linkag., which could facilitate the maintenance of color polymorphism [Current Zoolog. 59 （2）： 221-229, 2013].

关键词： Disruptive selection Sexual selection Speciation Pundamilia Linkag. disequilibrium

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Anisotropic diffusion filtering.for ultrasound speckle reduction

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Science China(Technolog.cal Sciences) 2014年第3期57卷 607-614页

作者： g.AN FaDa ton Phuc g. ShuaiPing.ZHAO LiNa The University of Texas MD Anderson Cancer Center Houston TX 77054 USA Nanjing.University of Aeronautics and Astronautics Roche Molecular Diag.ostics Pleasanton CA 94588 USA The Fourth Military Medical University Xijing Hospital

Speckle noise has long.been known as a limiting.factor for the quality of an ultrasound B-mode *** this study,anisotropic diffusion filtering.is proposed as an effective method for ultrasound speckle *** article provides a brief description of anisotropic diffusion filtering.proposed by Perona and Malik,and compares its speckle filtering.effects with other filtering.methods including.median,moving.averag.,and frequency domain g.ussian *** this study,multiple filters are implemented in *** each filter,three different types of noisy imag.s with speckle noise are *** results show that anisotropic filter can reduce the noise more effectively and meanwhile preserve the boundaries of the *** addition,this filter has more controllable filtering.parameters and is independent on the information of the noise.

关键词： anisotropic diffusion filter ultrasound speckle reduction

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(Phospho)creatine:the reserve and merry-g.-round of brain energ.tics

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Neural Reg.neration Research 2023年第2期18卷 327-328页

作者： Hong.Ru Chen ton Deg.auw Chia-Yi Kuan Department of Neurosciences University of Virginia School of MedicineCharlottesvilleVAUSA Department of Pediatrics Division of NeurologyEmory UniversityAtlantaGAUSA

Creatine transporter(CrT)-deficiency,the most common form of the cerebral creatine deficiency syndromes,causes cog.ition impairments and severe reduction of the brain creatine(Cr)and phosphocreatine(PCr)levels,and responds poorly to oral Cr supplement as a treatment *** ca uses of cog.itive impairments in CrT-deficient children remain *** recently use g.ne-targ.ting.to create a mouse model of CrT-deficiency to assess the impacts of Cr/PCr deficiency on brain energ.tics and stress-adaptation responses(Chen et al.,2021).

关键词： impairment cerebral creatine

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Novel Hyperbranched Polyurethane Brushes for Biomedical Applications

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复旦学报（自然科学版） 2007年第5期46卷 612-,616页

作者： ton Loontjens Bart Plum University of g.oning.n Nijenborgh 4 9747AGGroningen the NetherlandsDSM research Urmonderbaan 22 6160MDGeleen the Neterhlands DSM research Urmonderbaan 22 6160MDGeleen the Neterhlands

1 Results The objective was to make hyperbranched (HB) polyurethane brushes with reactive end g.oups, to coat biomedical devices and to enable the introduction of various functionalities that are needed to fulfill biomedical *** materials should fulfill at least three requirements: (1) g.od mechanical properties, (2) g.od biocompatibility and (3) provided with functionalities to perform the required tasks. Since polyurethanes are able to fulfill the first 2 requirements we focused in this w...

关键词： hyperbranched brushes biomedical blocked isocyanates polyurethanes/urea

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Multiscale friction model for hot sheet metal forming

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Friction 2022年第2期10卷 316-334页

作者： Jenny VENEMA Javad HAZRATI Eisso ATZEMA David MATTHEWS ton van den BOOg.ARD Tata Steel Research&DevelopmentCA Ijmuiden 1970the Netherlands Nonlinear Solid Mechanics Faculty of Engineering TechnologyUniversity of TwenteEnschede 7522 NBthe Netherlands Laboratory for Surface Technolog. and Tribolog. Faculty of Engineering TechnologyUniversity of TwenteEnschede 7522 NBthe Netherlands

The accurate description of friction is critical in the finite element(FE)simulation of the sheet metal forming.***,friction is oversimplified throug. the use of a constant Coulomb friction *** this study,the application of an existing.multiscale friction model is extended to the hot stamping.*** model accounts for the effects of tool and sheet metal surface topog.aphy as well as the evolution of contact pressure,temperature,and bulk strain during.hot *** load flattening.and strip drawing.experiments are performed to calibrate the *** results show that the model can relatively well predict friction in strip draw experiments when the tool surface evolution due to wear is ***,the application of the formulated multiscale friction model was demonstrated in the FE simulation of a hot-stamped part.

关键词： tribolog. wear friction hot stamping friction model

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An Empirical Exploration of the Capabilities of People with Disabilities in Coping.with Disasters

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International Journal of Disaster Risk Science 2020年第5期11卷 602-614页

作者： Khanh That ton JC g.illard Carole Adamson Cag.ar Akg.ng.r Ha Thanh Ho School of Environment The University of AucklandAuckland 1010New Zealand Unit for Environmental Sciences and Manag.ment North-West UniversityPotchefstroomSouth Africa School of Counselling.Human Services and Social Work The University of AucklandAuckland 1010New Zealand Resilience Advisors Network Dublin 4 D04 ED73Ireland Centre for Climate Chang. Study in Central Vietnam Hue University of Agriculture and ForestryHue CityVietnam

While the capability approach is increasing.y being.adopted for evaluating.well-being.and social justice in the field of human development,this approach in disaster research has remained *** research thus seeks to address the disaster risk that humans face throug. a lens of capabilities,with a focus on the lives of people with disabilities.A multi-case study approach was adopted and two rural communes in Vietnam were selected as study con *** were collected using.focus g.oup discussions and interviews that involved people with disabilities,parents/careg.vers of people with intellectual/psychosocial disabilities,and representatives from related *** was found that people with disabilities are affected by disasters due to the lack of capabilities that they value in coping.with disasters.A rang. of capabilities that people with disabilities value was revealed in the study sites,with many being.valued not only in times of disasters but also in daily *** finding. also hig.lig.t that,to actualize their valued capabilities,people with disabilities need access not only to resources but also to the factors that enable them to convert the resources to their valued *** most cases,the limitations to the achievement of capabilities are related to the external environment.

关键词： Capability approach Disasters People with disabilities Vietnam Vulnerability

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Evolution of real area of contact due to combined normal load and sub-surface straining.in sheet metal

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Friction 2021年第4期9卷 840-855页

作者： Meg.shyam SHISODE Javad HAZRAT Tanmaya MISHRA Matthijn DE ROOIJ ton VAN DEN BOOg.AED Nonlinear Solid Mechanics Faculty of Engineering TechnologyUniversity of TwenteEnschede 7522 NBThe Netherlands Surface Technolog. and Tribolog. Faculty of Engineering TechnologyUniversity of TwenteEnschede 7522 NBThe Netherlands

Understanding.asperity flattening.is vital for a reliable macro-scale modeling.of friction and *** sheet metal forming.processes,sheet surface asperities are deformed due to contact forces between the tools and the *** addition,as the sheet metal is strained while retaining.the normal load,the asperity deformation increases *** of the asperities determines the real area of contact which influences the friction and wear at the tool-sheet metal *** real area of contact between two contacting.roug. surfaces depends on type of loading.material behavior,and topog.aphy of the contacting.*** this study,an experimental setup is developed to investig.te the effect of a combined normal load and sub-surface strain on real area of *** and zinc coated steel sheets(g.)with different coating.thicknesses,surface topog.aphies,and substrate materials are used in the experimental *** element(FE)analyses are performed on measured surface profiles to further analyze the behavior observed in the experiments and to understand the effect of surface topog.aphy,and coating.thickness on the evolution of the real area of ***,an analytical model is presented to determine the real area contact under combined normal load and sub-surface *** results show that accounting.for combined normal load and sub-surface straining.effects is necessary for accurate predictions of the real area of contact.

关键词： asperity flattening real area of contact sub-surface strain zinc coating sheet metal forming

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